A new type of polymerizable Norrish Type II photoinitiators having an optionally substituted benzophenone group or an optionally substituted thioxanthone group is disclosed exhibiting improved compatibility with and solubility in radiation curable compositions. Radiation curable compositions and inkjet inks containing these polymerizable Norrish Type Il photoinitiators, exhibiting low extractable amounts of the photoinitiators and their residues after curing, are also disclosed.
本文披露了一种新型可聚合的Norris Type II光
引发剂,其具有可选取代的苯基酮基团或可选取代的
噻吩酮基团,表现出与辐射固化组合物的改进兼容性和溶解性。同时还披露了含有这些可聚合Norris Type II光
引发剂的辐射固化组合物和喷墨墨
水,这些光
引发剂及其残留物在固化后的萃取量较低。